State three chief characteristics of barchans.

1.	State three chief characteristics of barchans.
Answer» 1. Barchans are moon-shaped dunes. They are live dunes which advance steadily before winds that blow from a particular direction. 2. They occurs transversely to the wind, so that their horns thin out and become lower in the direction of the wind. 3. The windward side is convex and gently-sloping while the leeward side (being sheltered) is concave and steep.

Answer»

1. Barchans are moon-shaped dunes. They are live dunes which advance steadily before winds that blow from a particular direction.

2. They occurs transversely to the wind, so that their horns thin out and become lower in the direction of the wind.

3. The windward side is convex and gently-sloping while the leeward side (being sheltered) is concave and steep.

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